sigma_to_B#
- abtem.atoms.sigma_to_B(sigma)[source]#
Convert displacement standard deviation to crystallographic B-factor.
The B-factor (also called the Debye-Waller factor or temperature factor) is related to the r.m.s. displacement sigma by B = 8π²σ².
- Parameters:
sigma (float or ndarray) – Displacement standard deviation [Å]. Accepts scalars, (3,) arrays for anisotropic displacements (Bx, By, Bz), or any broadcastable shape.
- Returns:
B-factor [Ų].
- Return type:
float or ndarray